Home / 493,426.80-680,945.40-302,403.24

Finding the Fourth Proportional to 493,426.80, 680,945.40 and 302,403.24

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Solution

The fourth proportional to 493,426.80, 680,945.40 and 302,403.24 is: 417,326.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,426.80 : 680,945.40 = 302,403.24 : x
  2. Step 2: Convert to fraction form
    493,426.80/680,945.40 = 302,403.24/x
  3. Step 3: Cross multiply
    493,426.80x = 680,945.40 × 302,403.24
  4. Step 4: Simplify right side
    493,426.80x = 205,920,095,223.10
  5. Step 5: Solve for x
    x = 205,920,095,223.10/493,426.80
  6. Step 6: Final answer
    x = 417,326.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.